[NETLIK]: Add a pointer to the Generic Netlink wiki page.

Add a pointer to the OSDL wiki page on Generic Netlink.
Signed-off-by: NPaul Moore <paul.moore@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Documentation/networking/00-INDEX

@@ -58,6 +58,8 @@ fore200e.txt
 	- FORE Systems PCA-200E/SBA-200E ATM NIC driver info.
 framerelay.txt
 	- info on using Frame Relay/Data Link Connection Identifier (DLCI).
+generic_netlink.txt
+	- info on Generic Netlink
 ip-sysctl.txt
 	- /proc/sys/net/ipv4/* variables
 ip_dynaddr.txt

Documentation/networking/generic_netlink.txt

+A wiki document on how to use Generic Netlink can be found here:
+
+ * http://linux-net.osdl.org/index.php/Generic_Netlink_HOWTO